gistfile1.txt

$ node
> a = []
[]
> b = []
[]
> a == b
false
> a === b
false
> a == a
true
> a === a
true
> %                                                                                                                                     

$ python
Python 2.7.8 (default, Oct 18 2014, 12:50:18) 
[GCC 4.9.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> a = []
>>> b = []
>>> a == b
True
>>> a is b
False